Learning Naı̈ve Bayes Classifiers From Attribute Value Taxonomies and Partially Specified Data

نویسندگان

  • Jun Zhang
  • Vasant Honavar
چکیده

Partially specified data are commonplace in many practical applications of machine learning where different instances are described at different levels of precision relative to an attribute value taxonomy (AVT). This paper describes AVTNBL an extension of the Naı̈ve Bayes Learning algorithm that effectively exploits user-supplied attribute value taxonomies to construct compact and accurate Naı̈ve Bayes classifiers from partially specified data. Our experiments with benchmark data sets and AVTs show that AVT-NBL yields classifiers that are substantially more accurate and more compact than those obtained using the standard Naı̈ve Bayes learner.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Learning Naive Bayes Classifiers From Attribute Value Taxonomies and Partially Specified Data

Partially specified data are commonplace in many practical applications of machine learning where different instances are described at different levels of precision relative to an attribute value taxonomy (AVT). This paper describes AVT-NBL – a variant of the Naïve Bayes Learning algorithm that effectively exploits user-supplied attribute value taxonomies to construct compact and accurate Naïve...

متن کامل

Learning Decision Tree Classifiers from Attribute Value Taxonomies and Partially Specified Data

We consider the problem of learning to classify partially specified instances i.e., instances that are described in terms of attribute values at different levels of precision, using user-supplied attribute value taxonomies (AVT). We formalize the problem of learning from AVT and data and present an AVT-guided decision tree learning algorithm (AVT-DTL) to learn classification rules at multiple l...

متن کامل

Generation of Attribute Value Taxonomies from Data and Their Use in Data-Driven Construction of Accurate and Compact Naive Bayes Classifiers

Attribute Value Taxonomies (AVT) have been shown to be useful in constructing compact and robust classifiers. However, in many application domains, human-designed AVTs are unavailable. For this problem, we introduce AVT-Learner, an algorithm for automated construction of attribute value taxonomies from data. AVT-Learner uses Hierarchical Agglomerative Clustering (HAC) to cluster attribute value...

متن کامل

Tree Kernel Usage in Naive Bayes Classifiers

We present a novel approach in machine learning by combining naı̈ve Bayes classifiers with tree kernels. Tree kernel methods produce promising results in machine learning tasks containing treestructured attribute values. These kernel methods are used to compare two tree-structured attribute values recursively. Up to now tree kernels are only used in kernel machines like Support Vector Machines o...

متن کامل

Learning Semi Naı̈ve Bayes Structures by Estimation of Distribution Algorithms

Recent work in supervised learning has shown that a surprisingly simple Bayesian classifier called naı̈ve Bayes is competitive with state of the art classifiers. This simple approach stands from assumptions of conditional independence among features given the class. Improvements in accuracy of naı̈ve Bayes has been demonstrated by a number of approaches, collectively named semi naı̈ve Bayes classi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004